<?php

/**
 * Hoa Framework
 *
 *
 * @license
 *
 * GNU General Public License
 *
 * This file is part of HOA Open Accessibility.
 * Copyright (c) 2007, 2008 Ivan ENDERLIN. All rights reserved.
 *
 * HOA Open Accessibility is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * HOA Open Accessibility is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HOA Open Accessibility; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *
 * @category    Framework
 * @package     Hoa_Convertor
 *
 */

/**
 * Hoa_Framework
 */
require_once 'Framework.php';

/**
 * Hoathis_Convertor_Format_Abstract
 */
importModule('Convertor.Filter.Abstract');

/**
 * Class Hoathis_Convertor_Filter_Round
 *
 * Extending the Hoathis_Convertor_Filter class.
 *
 * @author      Gregory DARCHE <tetardo@gmail.com>
 * @copyright   Copyright (c) 2009 Gregory DARCHE.
 * @license     http://gnu.org/licenses/gpl.txt GNU GPL
 * @since       PHP 5
 * @version     0.1
 * @package     Hoathis_Convertor
 * @subpackage  Hoathis_Convertor_Filter
 */
class Hoathis_Convertor_Filter_Round extends Hoathis_Convertor_Filter_Abstract {

    /**
     * precision	Number of decimal
     * mode			Type of round
     *		auto		Arrondi automatiquement
     * 		upper		Arrondi au superieur
     * 		lower		Arrondi à l'inferieur
     *		noround		Coupe
     */
    protected $param = array(
        'precision'	=> 0,
        'mode' => 'auto'
    );

    protected function filter( $value ) {

        switch ($this->param['mode']) {

            case 'auto':
                return round($value, $this->param['precision']);

            case 'lower':
                return self::lower($value);

            case 'lower':
                return self::upper($value);

            default: {
                $tmp = explode('.', $value);
                return $tmp[0].'.'.substr($tmp[1], 0, $this->param['precision']);
            }
        }
    }

    private function upper ( $value ) {

        if (is_flaot($value)) {

            return $value;
        }
        else {

            if ($value > 0)
                return ceil($value);
            else
                return floor($value);
        }
    }

    private function lower ( $value ) {

        if (is_flaot($value)) {

            return $value;
        }
        else {

            if ($value > 0)
                return floor($value);
            else
                return intval($value);
        }
    }
}